/Engine/Source/Developer/SharedSettingsWidgets/Public/ManifestUpdateHelper.h
Finalizes the updater, and writes it back to the file, returning true if successful, and false if there were any errors.
bool Finalize ( const [FString](API\Runtime\Core\Containers\FString) & TargetFilename, bool bShowNotifyOnFailure, [FFileHelper::EEncodingOptions](API\Runtime\Core\Misc\FFileHelper\EEncodingOptions) EncodingOption )